2011年6月20日 · people living in the area. From the 1970s onwards, Aymara and Quechua campesino colonisers from the Altiplano and high valleys began to settle in the area to the south of the park, closest to Cochabamba and adjacent to the coca-producing Chapare area. They began to produce cacao, bananas, cassava, maize, citrus fruits and coca.